Definitions

intelligent

[in-tel-i-juhnt] / ɪnˈtɛl ɪ dʒənt /

ADJECTIVE

very smart

Synonyms

STRONGEST

astute brainy bright brilliant creative imaginative inventive knowledgeable original perceptive rational resourceful smart well-informed wise

WEAK

able acute alert alive all there apt calculating capable clever comprehending deep discerning enlightened exceptional highbrow ingenious instructed keen knowing penetrating perspicacious profound quick quick-witted ready reasonable responsible sage sharp thinking together understanding whiz witty

Antonyms

STRONGEST

dark dull ignorant normal old stupid typical unaware uncreative uneducated unimaginative unintelligent uninventive unreasonable unresourceful worn

WEAK

foolish idiotic imbecile

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

People who knew him through his work there described him in interviews as intelligent and professional.

From Los Angeles Times • May 3, 2026

"He's a sincere, quiet gentleman. A very intelligent guy," they said.

From BBC • Apr. 30, 2026

It’s an assured, intelligent performance, if a touch too stentorian.

From Los Angeles Times • Apr. 29, 2026

That is, he wished his paper had done what an intelligent 9-year-old, in a spirit of science, possessed of curiosity, would have done when presented with a new and unexplained phenomenon.

From The Wall Street Journal • Apr. 28, 2026

“I knows him!” and, after a few convulsive efforts, the red legs took the shape of a pair of compasses, and the intelligent pupil triumphantly shouted, “It’s a We, Dranpa, it’s a We!”

From "Little Women" by Louisa May Alcott

Vocabulary lists containing intelligent

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List 5

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